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High-speed high-resolution optically assisted analog-to-digital conversion

机译:高速高分辨率光学辅助模数转换

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摘要

The realization of a high-speed, high-resolution Analog-to-Digital Converted (ADC) is presented. The approach modifies an analog fiber optic link with a recirculating optical loop as a means to store a time-limited microwave signal so that it may be digitized by using a slower, conventional electronic ADC. Detailed analytical analysis of the dynamic range and noise figure shows that under appropriate conditions the microwave signal degradation is sufficiently small so as to allow the digitization of a multi-gigahertz signal with a resolution greater than 10 effective bits. Preliminary experimental results are presented to support the theory.
机译:呈现了高速,高分辨率模数转换(ADC)的实现。该方法将模拟光纤链路与再循环光学回路修改为存储时间有限的微波信号的装置,使得它可以通过使用较慢的传统电子ADC来数字化。对动态范围和噪声图的详细分析分析表明,在适当的条件下,微波信号劣化足够小,以便允许具有大于10个有效位的分辨率的多千兆赫兹信号的数字化。提出了初步实验结果以支持该理论。

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